Dell 2258D chassis cover assembly for Dimension 2100 desktop systems. This refurbished protective enclosure houses the motherboard, power supply, and internal components in a compact form factor. OEM Dell part number 2258D ensures exact fit and compatibility with Dimension 2100 models. The assembly includes mounting points for standard ATX and micro-ATX layouts and accommodates front-panel I/O connectivity. Typical applications include office workstations, light-duty computing environments, and system rebuilds requiring OEM-specification casings. Dust filtration and thermal management design supports passive airflow in low-noise operational settings. Each unit has been tested and guaranteed to meet original specifications. Available via quote.